I was looking at the 2020 Catalog and wanted to get one of the smoking reefer Halloween cars on pre-order. They call it an "ice cold" smoke effect. Is that accurate? How does it work? Is it just a standard smoke generator or are they using some of the new lower current micro piezo transducers from China used in atomizers/misters? If it is the latter, you would have to fill it with water and have to have an auto-shutoff if the water runs out. Also, those things put out a lot of "wet". So do they address the fact that moisture would be dripping onto the track?